大家在查： turns away from 非常严格 polycoagulant Margulis feretories ODV 布哈特 phanerogam oan XiangWeiyi

李雅庄

李雅庄

李雅庄

李雅庄

1

It is very useful to prevent the gas disaster and ensure the coal mine safety production .

对李雅庄煤矿防治矿井瓦斯灾害，确保煤矿安全生产具有重要意义。

2

The Determination and Analysis of the Resistance of Ventilation in Mine Liyazhuang

李雅庄矿通风阻力测定及系统分析

3

Application of flocculant for slime-water treatment at Liyazhuang Coal Preparation Plant

凝聚剂在李雅庄选煤厂煤泥水治理中的使用

4

Supporting Reform in the Soft Rock Main Roadway in Liyazhuang Mine

李雅庄煤矿软岩大巷支护改革

5

Roof Control Technology of Mining Roadway in 2# Coal Seam in Liyazhuang Colliery

李雅庄矿 2#煤层回采巷道顶板控制技术研究

6

Research on mine high gas control in Liyazhuang Mine

李雅庄矿井高瓦斯治理研究

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